Self-grinding valve for pumps and the like.



H. G. KLETT & C. N. VOIGHT.

'ELF GRINDING VALVE FOR PUMPS AND THE LIKE.

APPLICATION HLED MAR. 4. 1916.

1 ,1 99,572. Patented Sept. 26,1916.

WITNESSES f. fidW/f-J? exact description.

tin-re scares ATEYNT 93 i v HENRY-G: kns'r'r AND cnAnLss it VOIGHT, or vnw YORK, N. v.v

' sELr -sii1nnrn vALvE FOR PUMPS AND- T es nrn ni i iii-the county of the Bronx-and StateofNew 'Yorlg have"invcnteda new and Improved Self-Grinding-Yalve for Pum sand the like, j'of which the following is a nil, clear, and

"T his invention relates to puppet valves for engines, pumps and the like, and'has to deal more particularly with;a -valve. of. thattype in which there is a 'lTlQllttl-tOdllQt-fl-l contact hctween the valve body and the seat there- Ior.

I The invention has for its general objects, to improve and simplify the construction and operation of valves ofthecharacmr referred to soas to-helrcliable andeiiicicnt in;

use, coinparativ ely.- simple and inexpensive to manufacture; and. so designed that the seating surfaces will always be maintained perfect. v v A more specific object of the invention is the provision of a puppet valve in which the vaive body as it moves open and closed has a slight rotary motion .with respect to the seat to thereby keep the contacting surfaces of the valve body and seat perfectly'sniooth, whereby leakage is absolutely prevented.

With such objects in iew, and others which will appear as the description proceeds, the invention comprises various novel features of construction and arrangement of parts which will he set forth with particularity in the following description and claims appended here-to.

In the accompanying drawing,- which illustrates one embodiment of the invention and'wherein similar characters of reference indicate corresponding ph'ri's in all the views, Figure 1 is a central vertical section of the valve showing the valve body in open position; Fig. 2 is a central section on the line c of the spirally grooved element which causes rotation of the valve-body; and Fig. i is a bottom plan view of the element shown in Fig. 3. 7

Referring to the drawing, 1 designates the Specification Letters Patent;

: jApplicatien-fileii March 4, 1916. Serial No. 82,1 26; a n

is a perspective view i1 Pateiit eeSeii 2-6.;

i tern ally v threaded hub sandy-s a 'e fe ceimetia lthe j I hub with the circu'nif'fjeren -'p'ortion; the'hub is screwed ast at -nary' viil move axially and rotate is a circnmferentifal fia-nge'j9 I: evingfrat chet teeth 10. Surrounding the redi1ced portion 11 lot the stem isj a1 collar to 'move axially and rotata-hly; Thiscollarlhas'onzits under side a circular series fof ratchets ecth 13 which cooperate "with thetr'atchet teeth .10, whereby the rotationoofthecollar; sleeve i or'ring 12 is limited'to. one direction. @Tli face 1% and a central openg15i" which the valve stem passes Th si valve body opposite the se" i plurality'of'proj'ecti -or= eat-h" hlch engage in helical grooves 18-inthe -eircumv ference of the sleeve 12. Onthe'iipp'erend id- 1,. s,

of the stem is screwed ,a} cupped :washr' 19 held in place bya' jam-nut QQQRnd'hetWeen this washer andthe valve-body is a stifi helical spring 21 surrounding the flange-16,

taking place constantly While the valve is in operation, so that the points of contact he-, tween the valve body and the seat will be constantly changing, whereby grooves in the surfaces & and 1% will be prevented. The V valve body in opening and closin is caused to rotate by reason of the progections or teeth 17 engaging in the spiral grooves 18, and by reason of the ratchet teeth 10 and 1-3 interlocking and permitting rotation of the collar 12 only in one direction;

From the foregoing description taken in connection with the accompanying drawing, the advantages of the construction and method of operation will be readily understood by those skillediiii the artto which "the invention appertains, and while we have described the principle of operation to gether with the device which We new con sider to be the hest embodiment-thereof, we desire to have it understood that the deviceshown is merely illustrative and that such changes-maybe made when desired as ialljwithinthe scope of. the appended claims.

" Having-thus described our invention, we

aim as new, and desire to secure by Letters Tli6 combination of a valve seat, a stem fastened to the seat, a flange on the sternand having ratchet teeth, a valve body m -movable on the stem between the seat and "i -the flange 0f the stem, a collar mounted on the stermata point beyond the flange from the seat, means between'the collar and valve -body for producingrelative rotation of the wo,ratchet teeth on the collar in engage .;ment with the ratchet'teeth of the flange to prevent rotation of the collar in one di-rec tion',and a sfiring acting. on the valve body to seatthe same.

Z9 2. The combination of a valve seat element; a stem fastened thereto, a valve body idably and rotatably mounted on the stem,

ame,-a-col lar rotatably and slidably unted onthe stem, means between the veibody and collar in the form of helical v es and teeth, whereby the reciprocation the yalvebodycauses rotation thereof,

pringbearing on the valve body to seat and ratchet means between the collar and valve stem for permitting the collar to turn only in one direction.

3. The combination of a valve seat element, a valve body having a central opening, a valve stem attached to the seat element and extending through the opening of the valve body, a flange on the stem for limiting the opening movement of the valve body, ratchet teeth on the flange, a collar surrounding the valve stem, ratchet teeth on the collar engageable with the first-mentioned ratchet teeth to permit the collar to rotate only in one direction, a -washer on the outer end of the stem, a spring interposed between the .washer and valvebody for seating the latter, and means between the valvebody and collar whereby the reciprocation of the valve body causes pat" tial rotation thereof.

In testimony whereof we have signed our names to' this specification in the presence of two subscribing witnesses.

HENRY G. KLETT. CHARLES N. VOIG-HT. Witnesses:

FREDERIC N. SCHNEIDER, GEORGE RUECKEL. 

